Internal combustion engine



Aug. 29. 1933. J. E. SMITH 1,924,467`

INTERNAL COMBUST ION ENGINE Filed Oct. 30,A 1930 '2 Sheets-Sheer?I .1

k3 W N r O C) O o G W o M M o o j o o N Q 38% o 0 A 'N G O O J W O JO L@ L I g Q \S \m Inventur 7151, ,JYw/'/ A Homey Patented 29, 1933` y I UNITI-:D STA 1,924,467 INTERNAL ooMBUsTIoN ENGINE Joseph Edward Smith, Crescent City, Calif.- Application October 30, `1930. Serial No. 492,273

1 claim. (c1. 12s-59) This invention relates to new and useful improvements in internal combustion engines and more particularly to a novel valve structure.

The principal object of this invention is to prof vide a; valve for internal combustion engines which will not require re-grinding or` reseating as isv thev case with the present type Vofpoppet valve now used in automobile engines.

Another important object of the invention is tov provide a rotary type of valve wherein the valve will always be maintained equalized against side lashing.

Other important objects and advantages of the invention will become apparent to the reader of I the following specification. o

InV the drawings:-

Figure 1 represents a top plan ,view of the Vnovel Fig. 2 represents a longitudinal sectional view through the novel valve structure. I

Fig. 3 represents a sectional view taken substantially on the line 3-3 of Fig. 1.

Fig. 4 represents a bottom plan view of the engine head structure. f

Referring to the drawings wherein like numerl als designate like parts, it can beseen in'Fig. 3,

that numeral 5 represents the cylinder block with any number of cylinder bores 6 therein. l

This cylinder block 5 is provided with va narrow'` flange 7 at one side` and a relativelywide flangev 8 at its-opposite side. Numeral 9 represents Va head structure and numeral 10 represents a cap structure. 'The head structureY 9 and thev cap structure 10 are provided with -water'passage- Ways 11 whereby the corresponding parts can be maintained cool. 'The cap 10 islsecured to the head 9 by screw'sl2, and vaflzyore u13 extends through the head 9 and cap:..10 ylongitudinally thereof. It willbe seen that thetop of the head is formed with a low part at one side ofthe bore 13 anda high part at the otherside, while the4 cap has its lowerv face formed with a .depending part for engagement `withY the low side of the head and a higher part forV engaging the high part ofthe head so that the'major portion of the bore is in the head which acts to hold thev rotor 16 in that part ofthe bore located in the head, when the cap is removed. Both the cap- 10 andthe head 9 are provided `with longitudii' opposite end at the cylinder' 6, are the intake and exhaust ducts'121V and 22, and continuations of these ducts extend from the bore 13 through one side of the head, one ofthese passages being shown at 21` and these continuations communicate with the intake and exhaust 'manifolds `23 and 24-respectively.' Each cylinder is equipped with aA spark plug 25 and obviously before `the fuel can pass from the duct 21, to the cylinder 6,

the intake opening 17 of the rotor 16 must be registering therewith. As will be seen each cylinder f is provided with an inlet passage and an exhaust passage and these two passages of each cylinder las PATENT OFFICE f are controlled by a pair of they ports `1'7 and 18 of the rotary valve member.

While the foregoing specifcationsetsforth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without, departing from thexaspirit and scope of the invention as` claimed hereinafter.

Having thus described my invention, what I1V *In an engine of the class described, a remov' able head having an inlet passage and an exhaust passage therein, for each cylinder of the engine,

saidl head having aflon'gitudinally `extending groove yin. its top surface which intersects theV Vsaid passages, said head having a high part at one side of the groove and a low part at the opposite side whereby the groove is of greater cross sectional area than a semi-circle a cap detachably connected tothe topr face ofthe-head and having a groove inV its lower face, forming withV the rst-mentionedgroove a circular bore said" cap having a depending part at one side of Vits groove contacting the low side. of therhead and a high part at the other sideV of Vits groove contacting the high `part of-the head, the lwallsoi' the bore having annular, grooves therein spaced apart, Leach of the aforementioned passages entering the bore between a pair of said grooves,

a rotor rotatably arranged in the'bore and having `annular'rings thereonfitting in the grooves and said rotor having ports passing therethrough, A05* one between each pair 'of rings, said ports registering with` the passages during "the rotation` of the rotor,.said headhaving a longitudinally extending grooveV therein projecting'out into the `bottom of the first mentioned groove and thercapV having aV longitudinallyextending groove therein opening out into the top of the bore forming groove therein said longitudinal grooves intersecting theA annular grooves, and a plurality of spring pressed strips insaid longitudinal grooves in the cap. and head for engaging the vrotor j between the rings thereof. JOSEPH EDWARD SMITH. 

